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  1. four stroke tech
  2. Bike sat for 1 year
  3. Where to buy dynojet 148?
  4. HELP! Oil Blown Out of Air Filter!
  5. Has anyone bought the Emgo oil filters off ebay???
  6. Honda Xr250R CDI on 400EX?
  7. need some help with my 426
  8. what is a good bore for a 400ex
  9. 2005- 400ex?
  10. rev limiter on a stock 400ex?
  11. what is good gearing for racing
  12. What piston kit?
  13. Best Carb for Instant Throttle Response?
  14. Shifter Adjustment
  15. 250x grounds
  16. what is good gearing for racing tt my tires are 20in????????
  17. will the 2003 400EX axle work in a 1987 250X
  18. clutch and brake problems
  19. Db level for my t-4 slipon???
  20. best place to buy yoshimura?
  21. I Need Help!!!
  22. big bore kits and oil coolers
  23. 400ex jetting
  24. 465 kits?
  25. signature
  26. jetting A white bros. E-series....help
  27. Hotcam, rockers, etc
  28. valve timing question?
  29. What gearing for sand/dune/desert trail riding?
  30. LRD Exhaust Spark Arrestor?
  31. Head Pipe
  32. How to's for installing a 416 kit on a 400ex
  33. pics red HMF pipe on 300ex
  34. exhuast question
  35. 250x exhasut?
  36. yoshi pipe
  37. Dial-A-Jet Fuel Induction System????
  38. fcr or lectron
  39. 450r fan
  40. hetrick 310 kit?
  41. 400EX w/ FMF Pipe - Jetting - Any Ideas
  42. What gearing do you guy run on the 400's for XC?
  43. UNI Air Filter?
  44. how do you post a pic????????????????
  45. Valve adjustment on 400ex, web cam?
  46. trinity racing pipe
  47. Axle bearings wearing prematurely??
  48. 39,40,41 carb size ?
  49. ? about numbers on JE piston
  50. Clutch still slipping, help!
  51. 16 tooth front sprocket for drag racing
  52. 440 will not hold idle
  53. chain lube
  54. Jetting, please help!!
  55. 87 250x flat throtle response
  56. Aftermarket Oil Cooler - 400ex
  57. 300ex axle
  58. 300ex with dirtbike killswitch?
  59. test
  60. hot wireing
  61. Wiring
  62. 400 help plz
  63. 250R axle doesn't fit 400EX
  64. "serious" help needed
  65. Top end rebuild questions
  66. Bogging in and out after runnin for a lil bit
  67. exhaust too loud
  68. Higher top speed
  69. yoshimura exhaust
  70. need some help
  71. 250X Cam Chain Adjustment
  72. 350X Conversion Questions
  73. thanks guys for the help
  74. lte racing
  75. How to install main jet
  76. carb got my confused
  77. 300ex camshaft
  78. exaust suggestions
  79. 450r exhaust on 250x
  80. whats wrong
  81. 41mm FCR to big for modified 406?
  82. cutting out at 1/2 - WOT
  83. jetting for my 400ex?
  84. 400ex port
  85. Front Sprocket
  86. need some opinions
  87. Main jet or Jet kit?
  88. 10.5:1 compared to 11:1 piston
  89. whats next
  90. 400ex carb on a 300 ex
  91. Heat
  92. exhaust
  93. Which is stronger?
  94. what is a better pipe?
  95. drag pipes on a 4 stroke???
  96. crf426 q's
  97. pics of hmf pipe on z400
  98. Sleeve or just bore for 425
  99. Carb only opens half way
  100. Help?? Carburator and Jets
  101. post some pics of thos hot bikes
  102. little starting problem
  103. 300 jettin
  104. Question...
  105. A little help...
  106. idle adjustment
  107. 400ex engine mods
  108. DMC vs. SPARX vs. HMF
  109. Damaged Cylinder
  110. a little smoke
  111. some questions on 400ex mods
  112. Dealer Piston Service
  113. power-now on FCR?
  114. Carb spacers?
  115. quiet 300 exhaust
  116. started sputtering
  117. Header leak..
  118. XR400 Cam in 400EX
  119. ring or vavle seals
  120. Where?
  121. FMF Q Exaust
  122. if the 400 was.....
  123. stock crf head pipe????
  124. Exhaust gasket?
  125. another jetting ?
  126. 400ex engine swap??????
  127. i don understand
  128. big bore kits for 1986 lt230s
  129. Outerwears airbox "lid"
  130. gasket sets?
  131. 300ex throttle limiter
  132. electrical problem
  133. cam??
  134. stock bore high compression
  135. leaking valves?
  136. 300ex chains
  137. Is there such a thing as a keihin 150?
  138. cobra pipe for 300ex?
  139. Dial a Jet 4 my Recon
  140. 300ex chain adjuster
  141. removing a clutch
  142. cam?
  143. dg pipe
  144. running rich
  145. Hetrick Racing Exhaust
  146. Ahhhhhhh!
  147. quiet, yet loud exhaust
  148. 400 ex 416 kit
  149. best place for a big bore kit
  150. help
  151. Clutch Kit ?????????
  152. question about a 250x
  153. Port and Polish
  154. who should i let biuld my engine??
  155. Quick question
  156. case saver
  157. 400ex Big Gun
  158. Does a cam effect compression
  159. Damnnnn!!!
  160. ATV DYNO - Is there such a machine?
  161. What is a Jug?
  162. 400ex exhaust help
  163. carb has my confused
  164. CRF 450 overheating...
  165. Should I switch pipes?
  166. Is it my Cylnoid???
  167. Stretched Cam Chain?
  168. Spark Plug Heat Range
  169. hmf,fmf,white brothers pipes
  170. Help Please!
  171. how fast
  172. can't decide which pipe...
  173. New to the World of Carbs
  174. jet4power
  175. Whats wrong w/ this picture
  176. Timing Chain Tensioner going bad......
  177. Edelbrock carb for a 300ex
  178. smoke
  179. yoshimuras website
  180. yoshimura exhaust
  181. More power on a Z400
  182. where to buy...valve seals and headbolts
  183. Do I need one?????
  184. Help
  185. 300 runs like sh*& when cold
  186. JE piston help!
  187. Exhuast stud torque?
  188. Is it just me or???
  189. Hot and Humid
  190. Help timming a 400ex! HELP!!!
  191. cams for stroked motor?
  192. lookin for a bore....
  193. 350x Hp?
  194. 300ex air scoops
  195. clutch whirring
  196. rear tires?
  197. Raptor, Oil under the Ignition cover?
  198. LRD exhaust??
  199. ? about 39mm FCR
  200. need help fast 300ex valve lash
  201. HOTWIRE- quad won't spark.
  202. 250x Carb problem???
  203. exhaust?
  204. cooling & gearing on a 465 stroker
  205. 300ex Motor Tranmisson Blown Out
  206. sprokets
  207. valve adjustment
  208. Curtis Sparks Pipe need to know??
  209. Hushing up my pipe.
  210. 400ex timing chain
  211. Motor Will Not Rev Up
  212. Backpressure
  213. Busted clutch cover on 450r
  214. Give me info and insight on YFZ motorwork...
  215. Anyone else do this?
  216. new carrier or just bearings?
  217. exhuast
  218. wiseco 416 or je 416
  219. What is a good crf cam, and crankshaft, and other stuff?
  220. ignition switch
  221. Timing Chain
  222. Hotcam Stage 2
  223. bent shift shaft
  224. Hot Cam Stage 1 or 2
  225. Can You Name That Sound???please help....odd noise
  226. clutch and pipe
  227. 04 blaster
  228. White Brothers R4
  229. white bros
  230. need help asap (barrings and seals)
  231. 426 over heating how many out there do it?
  232. Carb problems
  233. uhhhh ohhh
  234. Trans problem during racing
  235. sparks
  236. leakage
  237. Need some axle nut help..... Torque-ing it...
  238. hubs loose except for cotter pin???
  239. CRF450 cam in TRX450
  240. Anybody know where to do some crank work???
  241. timing advance
  242. 2000 400ex stock carb problem
  243. where to buy a yosh slip on
  244. help on big bore kits
  245. Bent rim and bearings?
  246. uhg wow....
  247. Heavy Duty Cam Chain
  248. Quiet Core?..
  249. good deal or not
  250. exhaust